【明報專訊】LAST WEEKEND at the G20 Finance Ministers and Central Bank Governors Meeting in Shanghai the Chinese government handed out to the world community heavy doses of what might set minds at ease. Premier Li Keqiang, Governor of China's central bank Zhou Xiaochuan and Minister of Finance Lou Jiwei took turns to shout what might boost confidence, saying there was no basis for the yuan's continual devaluation, China would not take part in competitive devaluation to increase its export ability and now there was nothing to worry about in connection with China's foreign payment ability. It remains to be seen how effective such shouts aimed at boosting confidence will actually prove. However, the Chinese government has at least sent out four important signals.